The updated handset runs from Android ‘Gingerbread’ 2.3 OS straight from the box, along with an improved TimeScape UI and a physical slide-out Qwerty keyboard.

The Pro also has a multi-touch screen reality display and the Sony Mobile BRAVIA Engine, which was both missing from the original device and has recently been seen in their Xperia Arc handset.

Both the Xperia X10 mini and Xperia mini have 5megapixel cameras, although the newer model now has HD video recording capabilities in 720p.

O2 hasn’t released any tariff details or pricings for the Xperia Mini Pro, although they are currently retailing the original mobile phone. This appears on the network on a £21.50 monthly contract with 100 minutes and 500 text messages, where One Mobile Ring believes this will be mirrored with the Sony Ericsson Xperia Mini Pro.